Marble-working machine.



- N5. 858,466. PATBNTED JULY 2,, 1.907.

J. R. 'PBIRcB'. MARBLE WORKING MACHINE. APPLIGATION man MAB. 11, 1906.

WITNESSES:

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PATENTED JULY 2; 1907.

J. R. PEIRGE. MARBLE WORKING MACHINE.

AIPLIOATION FILED MAR. 17, 1906.

4 sums-WM.

INVENTOR:

WITNESSES zeys,

No. 858,466.. PATBNTED JULY 1.987. R. PEIR'GE.

MARBLE-Ii WORKING MACHINE. APPLIOEQIOH FILED HAR.17, 1906.

4 mums-$32 K: 4.

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WITNE "UNITED STATES BATENT OFFICE.

JOHN ROYDEN PEIRCE, OF New YORK, N. Y1, Assrenon 'r'o ROYDENJMAR'BLEMACHINERY COMPANY, on NEW YORK, N. Y., A CORPORATION or new JERSEY.

MARBLE WORKING MACHINE.

To all whom it may concern:

Be it known that 1, JOHN RoYpEN Person, a citizen of the UnitedStates,.residing in theborough of Man This invention :aims to provideimprovements espe, cially adapted to a gang machine for cutting marbleor similar stone by' means of a gang of cutters consisting preferablyofthin wheels of carborundum or similar agglomerated crystalline orgranular material; certain improvements in detail being-applicable tovarious other machines.

The accompanying drawings illustrate a machine Figure 1 is a half planand half horizontal section.

Fig. 2 isa side elevation. Fig. 3 is an end elevation showing certainpartsin section. Fig. 3*.is an enlarged detail of one of the endbearings shown in Fig. 3.

Fig. '4 is a rear elevation, partly in section, of one of the cuttersand its connected mechanism. Fig. 5'is-a section approximately on theline 5-5. of Fig'. 6. Fig. 6

is a side elevation of one of the carriages and the cutter therein. HFig. 7 is a plan of a portion of a clamp. Fig.-

8 is a complete plan of the same clamp. Fig. 9 is a vertical view,partly in section, of another style of clamp. Fig. 10 is a sectionalview illustrating the manner of operating on the stone. I

Referring to the embodiment of the invention illus trated, a number ofthin wheels A 'of carb'orundum, the

mesh or size of which depends upon the nature and conditions of thework, are arranged alongsideof each other as shown, and areflspliiiedupon a common driving shaft B adapted to be rotated at high speed (sayto give a circumferential velocity of a mile a minute ior the wheels) bymeans of belt pulleys C- on opposite ends of the shaft. Aslab of marbleD beingjed to the wheels,

receives a. number of parallel cuts so that it may be, divided-at onepassage through the machine into a number oi narrow slabs such as areused forbase-boards 0r i the like. The cutters are arranged to adjustedalong the shaft so as to vary their distance from each other and to varythe widthof the base-boards or similar products. Means are provided-alsofor varying, the position of the slab angularly so that two series ofcuts may be made, one crossing the other, as, for example, when it isdesired tomake marble tiles. By passing the slab l twice'through'themachine, it may be cut up into a the slot being wide enoughto,a'ccommodatc the wheel.

Specification of Letters Patent. Application iiled March 17,1906. SerialNo. 306,558.

resente idly 2,1907.

and a pair of central plates moimted on' a hub H which is splined on theshaft B as described, the hub f having a flange .l' which is bolted tothe carriage. Ball bearings K are preferably provided. I

In order to insert or withdraw a. wheel when renewals or repairs arenecessary, the shaft B is drawn out endwise, and the desired wheel isremoved from its carriage by removing the hub H. y In order tofacilitate the withdrawal of the shaft B without interfering with thepulleys C, the latter are carried upon a special hub L, as indicated inFig. 3,

which hub is jour'naled in the frame of themaclrine and splined on i theshaft. Either one of the end nuts on the shaft may thus be removed andthe shaft out through the pulleys and any desired number of wheelswithout interfering with any of the working parts.

In order to adjust the spacing of the wheels,'the car-.

riages are arranged to slide upon a pair of guides M N upon the frontportion of ,theframe of the machine, these guides being engagedrespectively by overhanging flanges O and P- upon the back of eachcarriage. The movement of each carriage is efiected by the retation of anut or sleeve Q carried between flanges R (the near flangebeing removedin Fig. 6) projecting at the back of the carriage and threaded upon ashaft S which is fixed at its opposite ends in the frame of the machinieand held against rotation. The rotation is effected by means of a shaftT splined through a gear U carried by each carriage, this gear in turnengaging a pinion V which normally engages a clutch-sleeve W splined onthe nut or sleeve Q. The clutch-sleeve W is connected-to one end ot aclutch-lever X projecting out of the front of the carriage to form ahandle X and operatingin the usual way to throw the sleeve W into oroutof engagement with the pinion V. t

The relation between the gear U and pinion V is different the severalcarriages, the ratio increasing from one end tb the other of themachine, so that the speed of adjustment shall vary as the adjustingshaft T is rotated, aniithe several wheels shall preserve equaldistances if all the clutches be in engagement. If forany ,7

purpose it be desirable to arrange the wheels at other thanregularspaces, the clutch'of the proper carriage. may be thrown out ofengagement whenthe wheel is at the desired point. For example, when anynumber of the wheels are to be withdrawn entirely from the marble, theircarriages will be adjusted until they reach approximately the end of thescrew-shaft S, whereupon the clutches will be disconnected and thewheels to be used will tlien be adjusted to any desired positions.

The shafts B, T and S are made to extend considerable .slab is returningto its starting point.

The guide M and N for the wheel carriages are preterably integral partsof a beam Y from which. these guides project forwardly, said beam beingprovided also with rearwardly extending ribs Z, shown in dotted lines,Fig. 2, and with an upwardly projecting arched rib a, thus providing avery simple construction of great strength to resist the lateral andvertical pressures.

- adjustment or to peqmit the passage of the stone under the wheels. Theshafts B, T and S are preferably mounted upon brackets 9 arranged on theoutside of the slides b. The upper ends of the side frames c are tiedtogether by a plate h; and the lower ends by a base j, giving the entireapparatus great rigidity. The upper plate h serves also as a support forthe intermediate bearings 01" the shafts e for raising and lowering thebeam.

The stone is carried upon a, bed I: which is designed to be reciprocatcdupon longitudinally-arranged ways l. Provision is so made for turningthe bed It so that after one series of cuts has been made the stone'ma ybe turned Without unclamping it from the bed, and the second series ofcuts made transverse to the first. To secure this adjustment a circularbearing ring m is provided upon an intermediate frame 11, the latterbeing provided with beatingedges 0 which run directly on thelongitudinal ways I. i The bearing ring in lies in a rabbet ofgrqove ofthe frame n, and the bed-Iris provided with a central pin p engaging thelatter. A pin q is carried by the intermediate frame n, and is raised orlowered by a handle 1' projecting to the outside of the bed, suitablesockets being arranged on the under side of the bed to receive the pinand to hold the bed at certain definite angularpositions. Theintermediate frame 11. is reciproca ied by means of a longitudinal wormshalt s driven by any suitable gearing and engaging a downwardprojection t at the center of the intermediate frame. The bed 1.: isprovided with grooves I or other suitable devices for the attachment ofclamping means.

A slab bein clamped upon the bed. the shaft s is ro tated in the desireddirection, and a series of cuts made at the desired spacing. Theoperator then withdraws the pin q and turns the bed, say 90 degrees, andby a rotation of theshai't s in the opposite direction returns the bedto its starting point, the cutting whccls being lifted to permit thepassage of the slab. The bed is then fed again in the originaldirection, and a serie of Cuts is made transverse to the originalseries. Or, the cutting wheels may be made to rotate in an oppositedirection and to effect the second series of cuts when the In order toretain the slab upon the bed, and the various parts of the slab inproper position, the wheels are adjusted so as to cut nearly but notqgitc through. The method is indicated best in Figs. (5 and 10. The verythin wall 'v of marble left at the bottom of the cuts or grooves w connects the parts on opposite sides 0! the respective sas es grooves, sothat when a cut is to be effected in a direction transverse to a groove10 the strain, which is in the line of the arrows .r, is notsufficiently strong to separate the parts on opposite sides of thegroove. w. Thus the slab after being once clamped on the machine may becut a number of times and in any direction desired without having toreclamp it. When all the desired lines have been cut, the mere liftingof the slab puts a transverse strain on the wall 12 at the bottom of thegrooves, and breaks this off in the manner indicated in Fig. 10. Anyportions of the wall '0 which adhere to one side or the other arereadily knocked off. This process leaves the rear edge in a roughcondition,- which is not objectionable in most of the classes of workwhich this machine is designed to turn out, since the slabs made by themachine are usually disposed only upon one face, and it is desirable insetting the marble that the rear line or each edge should be beveledoff. Of course where a perfectly smooth edge of the slab is desired, thewheel must be arranged to cut ontirely through the slab, and for thispurpose the slab will be bedded on a thin layer of plaster of paris orsimilar material.

In order to facilitate the movement of the slab backward and forwardunder the wheels in various positions, Iliave invented a clamping devicewhich does not project substantially above the top of the slab when inthe fastened position. One form of the device is shown in Figs. 6, 7 and8, and another in Fig. 9. The clamp is not herein claimed as a separateinvention, being so claimed in my application No. 339,358, filed October17, 1906.

Referring to the lirst form, a clip y is provided having a portionoverhanging the dge of the marble and projecting above the face of themarble only by the thickness of the sheet-metal usually employed. Theclip 3 has a base portion 2 adapted to rest approximately on the bed I;of the machine when the upper part of the clip engages the marble. Thebase 2 of the clip is l'orkcd, and there projects upward through thefork a fastening device comprising :1 pin 2 having a head 3 engagedwithin the groove it and carrying pivotcd thereon a pair ofeccentrics 1. one on each side of the pin 2, the eccentrics beingprovided with a handle 5. The position of the ccccutrics is such thatwhen they are in the fastening position, pressing down upon the base 2of the clipjlbc handle 5 is in its downward position. Preferably theeccentric swings a little past its center in the fastening position, soas to be locked there. It will be seen from an inspection of Fig. (3that the entire clump, does not project above the top of the clip. lnorder to release the clamp the lmndlc 5 is thrown upward. Clips ofdifferent heights are provided for different thicknesses of stone, butus lhcrc are only a few standard thickness s to be considered this isnot a diliicult matter. The pins 2 with the eccentrics mounted tl1erconare always of the same length, the only variation necessary being in thcclips. Not only is the constructiou exceedingly simple and cheap, butthe operation is very quick and the stone is very firmly clamped.

Another clamp which projects above the slab only by the thickness of themetal overlying the edge of the slab, is shown in Fig. 9, in which a.hollow pin ll carries a head 3 engaging in the groove 1t as usual, and aclip 7 has :i. crtical l g 8 entering the pin (l; the leg 3 being forceddown into the hollow pin 6 a distance corresponding to the thickness ofthe marble slab by means of a wedge 9 passing through registering slotsin the pin 6 and leg 8 respectively. This clamp has the advantage ofbeing adjustable for a considerable variation in the thickness of theslabs, though not so convenient to operate, the wedge 9 having to bedriven in or out b means of a hammer of the like. I

A rose or nozzle 10 is provided adjacent to each of the wheels, andsupported on the same bracket so as to travel therewith and to direct acopious supply of water to the cutting point, any suitable flexibleconnection to the source of supply being provided. Any other means forprovidingthe desired quantity of water may be applied.

The process of cutting a number of lines nearly through, leaving onlysufficient web to hold the parts together, and then removing the slabfrom the bed and separating all the parts, is not claimed in the presentapplication, being claimed in my application No. 307,685 filed March 23,1906. v

Though I have described with great particularity of detail certainspecific embodiments of the invention, yet it isnot to be understoodtherefrom that the invention is limited to the particular embodimentsdescribed.

Various modificatio in detail and in the anan emeiit I n5 43nd at thesame time to maintain the spacing uniform,

and combination of the parts may be made by those skilled in the artwithout departure from the invention.

simultaneously adjusting all said wheels to vary the dis- What I claimisz- 1. A machine for coping marble, comprising a number of thin wheelsA of carborundum arranged alonside of each other and adapted to cut ineither direction, a separate carriage E for each of said wheels, :1common shaft B by which all of said wheels are rotated, means for rotating said shaft at a high speed, and means for feeding a slab theretoin each of two opposite/directions to make a plurality of cutssimultaneously in either direction.

2. A' machine for coping marble, comprising a number of thin wheels ofcarborund'um arrangcd alongside of each other, nieans for rotating saidwheels at a high speed, means for feeding a slab of marble thereto tomake a plurality of cuts simultaneously, and a single means for tancethereof from each other.

It. A machine for coping marble, comprising a.number of thin, wheels ofcarborundumuarranged alongside of eaclrother, means for rotating saidwheels at a high spced means for feeding a slab of marble thereto tomake a lurality of cuts simultaneously, a single means forsimultaneously adjusting all said wheels to vary the distance thereoffrom each other, and means for disconnecting individual wheels from saidadjusting means.

4. A machine for coping marble, comprising ainumber of thin wheels A ofcarborundum 'arrangedalongside of each otherand adapted to cut ineitherdirection, a separnte'carrlag E for each of said wheels, :1 common shaftB- by which all of said wheels are rotated,- means for rotating saidshaft at a high speed, means for feeding a slab of marble thereto ineach of two opposite directions to make a plurality of cutssimultaneously in either direction, and means for adjusting the positionof the slab angulurly so as to make two series of cuts, one series on'the forward movement of the slab, and another series crossing the firston the return movement dividing the slab into a number of pieces havingfour finished edges.

5. A machine for coping marble, comprising a number of thin wheels A ofcarborundum arranged alongside of each other, a separate carriage E foreach of said wheels, a common shaft B by which all-said wheels arerotated, means for rotating said shaft at a high rate of speed, and

a bed for carrying a slab of marble and feeding' the same to said wheelsto make a plurality of cuts simultaneously.

6. A machine for coping marble, comprising a number of cutters, a commonshaft upon which all said cutters are splined, means for operatingsaid,shaft at a high rate of speed, means for feeding .a slab of marbleto said cutters to make a plurality of cuts simultaneously, a threadedshaft S fixed against longitudinal movement, a series of nuts orinternally threaded sleeves Q connected to the several cutters, andmeans for simultaneously rotating the several nuts Q at varying ratesofspeedso as to adjust the spacing between the several cutterssimultaneously and at the same time to maintain the spacing uniform.

7. A machlnefor coping marble, comprising a number of cutters, a commonshaft upon which all said cutters are splined; means fol-operating saidshaft at a high rate of speed, means for feeding a slab of marble tosaid cutters to make a plurality of cuts simultaneously, a threadedshaft S fixed against longitudinal movement, a series of nuts 'orinternally-threaded sleevesfQ connected to the several cutters, meansfor simultaneously rotating the several nuts Q at varying rates of speedso as to adjust spacing between the several cutters simultaneously and aclutch through which each of the nuts Q is opal ated, whereby any one ofthe cutters may be unmoved while the others are being adjusted;

8. A machine for coping marble, comprising a number of thin wheels -A'of carborundnm, a carriage id for each of said wheels and having a slotin which the wheellies, I

a hub for said wheel normally fastened in the carriage but removabletherefrom, and a shaft B upon which the several hubs are splined so thatthe shaft may be Withdrawn endwise through a number of the wheels andone.

or more of'the wheels removed without removing the others.

9. A machine for-'copingnnarble, comprising b. number of thin Wheels Aof carborundum, carriage E for each of said wheels and having a slot inwhich the wheels lies, a hub for said wheel normally fastened in thecarriage but removable therefrom, a shaft B upon which the several hubsare splincd so that the shaft may be withdrawn endwise through a numberof thc wheels and one or more of the \vheelsremoved without removing theothers, anda pulley C supported upon-the frame-of the machine andspiiued upon said shaft for driving the same and for permitting theendwlse withdrawal of the shaft without:

- removal of the .pulley.

10. In combination, a bed upon which a slab of mai ble is adapted to beclamped, a cutter carried above said bed on a horizontal shaft, a clipengaging the edge'of the slab, and a fastening device lyingsubstantially below

